window.onload=function(){
      var xhr=new XMLHttpRequest()
      xhr.open('get','/studio/album/candidate.json'+location.search)

      xhr.onload=function(){
          var data=JSON.parse(xhr.responseText)

          //#aid 是id选择器
          document.querySelector('#aid').value=data.aid;
          var oContainer=document.querySelector('.container')

          var list=data.trackViewList
          for(var i in list){
              var t=list[i]
              var html=`<div><input type="checkbox" name="aid-tid" value="${t.tid}">${t.title}</div>`
              oContainer.innerHTML+=html
          }
      }
      xhr.send()
}